<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>012-set的遍历.html</title>
</head>
<body>
	
</body>
<script>
	const s = new Set([44,66,77,99])
	for(let key of s.keys()){
		 console.log('key',key)
	}
	for(let value of S.values()){
		console.log('value',value)
	}
	for(let entry of S.entries()){
		console.log('entry',entry)
	}
	s.forEach(function(value,key)){
		console.log('value='+value+)
	}
</script>
</html>